We’ve all done it. You pull up your vector editing tool, draw a perfect circle, another one inside the first one, cut the second one out, align the whole thing to the editor’s on-screen grid – so ...

Abstract: We present a systematic design method for a cylindrical conformal array of rectangular waveguide-fed metasurfaces. The conformal metasurface consists of multiple curved rectangular ...

Turn even the smallest backyard into a relaxing escape. These garden ideas make tight spaces feel like a luxury outdoor ...

Abstract: A dual-stopband rectangular waveguide slot array antenna is presented in this article. First, a rectangular filtering waveguide with dual stopbands is realized by periodically loading a row ...

Digital art apps continue to shape creative workflows in 2026, offering powerful tools for both beginners and professionals. Modern drawing apps for artists now support advanced pressure sensitivity, ...